kubernetes namespaces source Kubernetes Namespaces Source

Provided by: "Apache Software Foundation"

Support Level for this Kamelet is: "Stable"

Consume Events from Kubernetes Namespaces

Configuration Options

The following table summarizes the configuration options available for the kubernetes-namespaces-source Kamelet:

Property Name Description Type Default Example

masterUrl

Kubernetes Master URL

Required The Kubernetes Cluster Master URL.

string

token

Oauth Token

Required The Auth Token to connect to Kubernetes Cluster.

string

Dependencies

At runtime, the kubernetes-namespaces-source Kamelet relies upon the presence of the following dependencies:

  • camel:kubernetes

  • camel:kamelet

  • camel:jackson

Camel JBang usage

Prerequisites

  • You’ve installed JBang.

  • You have executed the following command:

jbang app install camel@apache/camel

Supposing you have a file named route.yaml with this content:

- route:
    from:
      uri: "kamelet:timer-source"
      parameters:
        period: 10000
        message: 'test'
      steps:
        - to:
            uri: "kamelet:log-sink"

You can now run it directly through the following command

camel run route.yaml

Camel K Environment Usage

This section describes how you can use the kubernetes-namespaces-source.

Knative source

You can use the kubernetes-namespaces-source Kamelet as a Knative source by binding it to a Knative object.

kubernetes-namespaces-source-binding.yaml
apiVersion: camel.apache.org/v1
kind: KameletBinding
metadata:
  name: kubernetes-namespaces-source-binding
spec:
  source:
    ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1
      name: kubernetes-namespaces-source
    properties:
      masterUrl: The Kubernetes Master URL
      token: The Oauth Token
  sink:
    ref:
      kind: Channel
      apiVersion: messaging.knative.dev/v1
      name: mychannel

Prerequisite

You have Camel K installed on the cluster.

Procedure for using the cluster CLI

  1. Save the kubernetes-namespaces-source-binding.yaml file to your local drive, and then edit it as needed for your configuration.

  2. Run the source by using the following command:

    kubectl apply -f kubernetes-namespaces-source-binding.yaml

Procedure for using the Kamel CLI

Configure and run the source by using the following command:

kamel bind kubernetes-namespaces-source -p "source.masterUrl=The Kubernetes Master URL" -p "source.token=The Oauth Token" channel:mychannel

This command creates the KameletBinding in the current namespace on the cluster.

Kafka source

You can use the kubernetes-namespaces-source Kamelet as a Kafka source by binding it to a Kafka topic.

kubernetes-namespaces-source-binding.yaml
apiVersion: camel.apache.org/v1
kind: KameletBinding
metadata:
  name: kubernetes-namespaces-source-binding
spec:
  source:
    ref:
      kind: Kamelet
      apiVersion: camel.apache.org/v1
      name: kubernetes-namespaces-source
    properties:
      masterUrl: The Kubernetes Master URL
      token: The Oauth Token
  sink:
    ref:
      kind: KafkaTopic
      apiVersion: kafka.strimzi.io/v1beta1
      name: my-topic

Prerequisites

  • You’ve installed Strimzi.

  • You’ve created a topic named my-topic in the current namespace.

  • You have Camel K installed on the cluster.

Procedure for using the cluster CLI

  1. Save the kubernetes-namespaces-source-binding.yaml file to your local drive, and then edit it as needed for your configuration.

  2. Run the source by using the following command:

    kubectl apply -f kubernetes-namespaces-source-binding.yaml

Procedure for using the Kamel CLI

Configure and run the source by using the following command:

kamel bind kubernetes-namespaces-source -p "source.masterUrl=The Kubernetes Master URL" -p "source.token=The Oauth Token" kafka.strimzi.io/v1beta1:KafkaTopic:my-topic

This command creates the KameletBinding in the current namespace on the cluster.